this feature is already possible - please check the Advanced section from the SSH Shell Entry for the Option &quotAllow open multiple connections&quot Attached a screen - (multiple connections to the same host works flawless)

-) Batch Edit all the existing connections-) Create a template, configure all the preferred settings (also Jump Host for example ) and use this template for all new SSH Shell types

For Batch Edit all your existing connections you have to mark all the connections you would like to change --> Batch Edit --> Batch Actions and Custom Powershell CommandEnter this command and click OK:

Sorry to jump into your post, but you can also leave the option in your entries to Default and change the Allow Multiple Connections option to True in File -> Options -> General. Then, all your sessions set to Default should work as expected.